Your 11 twist barrel should not be a handicap with the bullets weights you tried. You are dealing with a factory barrel, new or not. They can be quite finicky about which load and bullet weight. Try some more of a different brand to see if your rifle has a preferance. I'd not expect 1/2" groups @ 100yds. from a factory barrel.

I'm a novice at this stuff. Just so I understand...are you saying that the lighter bullets will shoot better in the type of barrel I have?

Is there any hope for the heavier stuff?

Thanks a lot,
Dave

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For many a decade the "normal" twist in an 06 was a 1/10 twist for slugs that weighed from 150 gr to 220 gr. If you constantly shot 200-220 slugs a 1/9 was what ya needed because of their slower FPS speed. If you always show say 110-135 gr slugs a 1/11 or 1/12 twist because they were already "a-zipping" down range so all you needed was enough stabilizing spin.

I've had good luck with Hornady Superformance accuracy wise. Is this the total of whats been fired from the rifle? It could be things just settling in as the targets improve all the way through. I'd be curious to give it a good cleaning, and reverse the order of firing.

Super dave- i have shot 8 elk and guided guys to close to 40. the 30-06 is a great round. I f you go to rilfemansjournal you will find that German has done a lot of reaserch on loading shooting and twist rates for the 30-06. the 11 twist is IDEAL and he used it for up to 190 and 200 grain match bullets. the sako rifles are awesome. you should get better groups than that. any 165 or 180 grain bullet is ok, i like the 165 or 180 partition for bulls. the 168 cbt or the 168 berger should group best in your rifle.

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